This concealed Catholic church (the combined top floors of a 17th century canal house) is a reminder of the Alteration period in Holland. Protestantism was declared the official religion and churches like this one relied on clandestine activity for their survival. The building's lower floors became a museum in 1888 housing a collection of church artefacts and paintings. It is located near the edge of the Red Light District.

Address: Oudezijds Voorburgwal 40

E-mail: info@opsolder.nl

Website: www.museumamstelkring.nl

Telephone: (0)20 624 6604

Transport: A seven-minute walk from Central Station

Opening times: Open Monday to Saturday from 10am to 5pm (open from 1pm on Sundays and public holidays). Closed 1 January and 30 April

Admission: €7 (adults), €1 (children 5-18). Other concessions are available